(19)
(11) EP 0 785 222 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.08.1997 Bulletin 1997/33

(43) Date of publication A2:
23.07.1997 Bulletin 1997/30

(21) Application number: 97300248.8

(22) Date of filing: 16.01.1997
(51) International Patent Classification (IPC)6: C08G 73/00
(84) Designated Contracting States:
DE FR GB

(30) Priority: 16.01.1996 JP 4629/96
19.01.1996 JP 6998/96

(71) Applicant: SHIN-ETSU CHEMICAL CO., LTD.
Chiyoda-ku Tokyo (JP)

(72) Inventors:
  • Miyoshi, Hiroshi, c/o Shin-Etsu Chem. Co., Ltd.,
    Takatsu-ku, Kawasaki-shi, Kanagawa-ken (JP)
  • Komoto, Yasuyoshi, c/o Shin-Etsu Chem. Co., Ltd.,
    Takatsu-ku, Kawasaki-shi, Kanagawa-ken (JP)
  • Yahata, Ken, c/o Shin-Etsu Chem. Co., Ltd.,
    Takatsu-ku, Kawasaki-shi, Kanagawa-ken (JP)
  • Takiguchi, Yasuyuki, c/o Shin-Etsu Chem.Co., Ltd.,
    Takatsu-ku, Kawasaki-shi, Kanagawa-ken (JP)
  • Hayashida, Akira, c/o Shin-Etsu Chem.Co., Ltd.,
    Takatsu-ku, Kawasaki-shi, Kanagawa-ken (JP)

(74) Representative: Bassett, Richard Simon et al
ERIC POTTER & CLARKSON St. Mary's Court St. Mary's Gate
Nottingham NG1 1LE
Nottingham NG1 1LE (GB)

   


(54) Polycarbodiimide derivative and process for producing the same


(57) A polycarbodiimide compound is reacted with an organic compound having at least two amino groups in the molecule. A polycarbodiimide compound is reacted with an amine compound having a silicon atom in the molecule. The carbodiimide bonds remained in the crosslinked material are further crosslinked. The crosslinked material is further heated/calcined to obtain an inorganic material having high heat resistance and strong toughness.





Search report